change services.mcord.models to services.vbbu.models && add mcordservice.py

Change-Id: Iff1f85a37b783201a62975b06356f34403ab7e0b
diff --git a/xos/vBBU-onboard.yaml b/xos/vBBU-onboard.yaml
index 4e1e597..7ee767b 100644
--- a/xos/vBBU-onboard.yaml
+++ b/xos/vBBU-onboard.yaml
@@ -7,7 +7,7 @@
 
 topology_template:
   node_templates:
-    servicecontroller#vBBU:
+    servicecontroller#vbbu:
       type: tosca.nodes.ServiceController
       properties:
           base_url: file:///opt/xos_services/vBBU/xos/